Koch, Missouri

Koch is a former community in St. Louis County, Missouri. It was named for Robert Koch, a German bacteriologist. The location was at what is now Interstate 255 east of Route 231. It had a post office, which is now closed.

The Robert Koch Hospital was located just off US 255 before it crosses the Jefferson Barracks Bridge in south county at 4101 Koch Road. The hospital was built by the city of St. Louis primarily as a quarantine facility for patients with a variety of easily transmissible diseases, including smallpox, yellow fever, and tuberculosis. There is a cemetery located on the grounds of this closed hospital, the building founded in 1875 with its last major renovation in 1949 and was demolished in 1989. The cemetery referred to as "Quarantine" cemetery is located on the 503 acre associated with this hospital. Many people believe this site is haunted. The hospital site was listed on the National Register of Historic Places in 1984.

Nineteen buildings were constructed by 1939 and an 105 acre farm, post office, railroad stop, housing, and recreational facilities made the hospital almost self-sustaining. By the end of World War II new medications decreased the life-threatening effects of tuberculosis; from the 1950s to 1983 the hospital was used as housing for the indigent elderly.

It also houses an antenna site for St Louis City Emergency Management.

Location
The Geographic Names Information System (GNIS) gives the historical coordinates of the community as 38.48172°N, -90.28567°W

GNIS further gives the historical location of the hospital as 38.48255°N, -90.28567°W

GNIS gives the location of the Koch post office as unknown.